this is currently £339 on Nixon's official site. I nearly bought it last week at £299 on Amazon but luckily I didn't as now it's over a hundred pound cheaper than normal I had to post it here for everyone. it does appear that they have mislabeled the item so maybe that's why price is so low. don't know how long before they push it back up.
it is only the back one this cheap but the orange version is about £280 on Amazon too.
here is the link to Nixon's site to show the price is very good: http://www.nixon.com/uk/en/mission/A1167-2658-00.html